Technical Support - DMM
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599 77 23-65 Rev. 03
13.10
Three-phase asynchronous motor
– Inverter & Three-phase synchronous motor
with permanent magnets
13.10.1 General characteristics & Power supply to motor
Medium
Performance
MOTOR PM
Three-phase power is fed by the inverter (13), which sends through connectors 5-6-7 the three phases to
connectors 1-2-3 on the motor, where the windings
(X-Y-Z) are connected.
The phase shift between the phases is 120° and peak amplitude is 310V.
It is possible to get an idea of the continuity of the motor winding by measuring the resistance of the coils (value
at 25ºC):
Coil y ohm 5.35 ±7%
(contacts 2-3)
Coil x ohm 5.35 ±7%
(contacts 1-2)
Coil z ohm 5.35 ±7%
(contacts 1-3)
Medium Performance
MOTOR PM
Coil y-z ohm 6.56 ~ ±7%
(contacts 2-3)
Coil x-y ohm 6.56 ~ ±7%
(contacts 1-2)
Coil z-x ohm 6.56 ~ ±7%
(contacts 1-3)
1. Main electronic circuit board
2. Door safety interlock (with Door sensing switch)
2a Door safety interlock (without Door sensing switch)
13. Inverter
14. Motor
X-Y-Z = Motor Windings
